my buddy was driving my 93 YJ and it died all of a sudden, and it still had power. My Yj's fuel pump has died in the past and it did the exact same thing, died while i was driving it and it still had power just obviously no fuel was getting to the engine. However, i dont think it is the fuel pump this time due to the fact that when i turn my key a quarter turn, i can hear the fuel pump turn on and i also sprayed starter fluid into my intake and it still did not start. last time it would have started. I charged the battery just to make sure and it has power, just wont start. buddy of mine said it was the starter but a bad starter wont turn off your jeep while driving... im thinking it is something to do with the ignition process which could be the fuel pump...
update: just took the fuel lines off and turned the key and fuel squirted out, so not s fuel pump issue. the battery is a little lower on power then what is was a couple days ago when i tried to jump it... is this an electrical issue? if so, what electrical problem could cause the jeeps engine to turn off while running??
Hey mike if you have a no start the first things to look at would be;
1:Check for codes- cycle key without starting engine on-off-on-off-stay on, check engine light will flash out any codes stored like flash* pause * flash * flash - would be 12 a 55 means all stored codes have been flashed. this code may help put you on the system or circuit causing your problem.
2:Fuel- which you have done, can also check injectors with a noid light if you have one
3:Spark- are you getting spark from the ignition coil, is this spark making it to your cylinders?
it would die if something failed to cause you to lose spark. easiest way to check pull plug boot off of spark plug, rest on plug with boot over plug, dont click into place,have someone stand by the engine compartment while you crank it. if you have spark the person by the engine bay will hear a distinct clicking sound
Viking: to be honest im not really exactly sure what i am looking for regarding the codes. the check engine light comes on and stays on... unless i am doing the sequence wrong, i did on/off/on/off/on and the light stayed on..
Ok here the down and dirty on retrieving codes
1: turn key one click forward from lock ( this position will be considered off, the run position will be considered on)
2: from off position (as described above) turn on, off, on, off, on and leave on
3: your check engine light will remain on for 5 seconds ( have pen and paper ready)
4: after light turns off it will begin to flash your codes in groups. Flashes close together will be added together to get one digit. So flash--flash--flash--------flash--flash--flash---- will be 33, codes are two digits numbers
5: record all codes until code 55 is flashed 55 means end of list
6: after 55 it will flash the codes again, this is your chance to double check your codes
Hey guys sorry been busy with work. Turns out I got code 11 and 33. 11 is an a/c isn't connected which I'm not worried about, 333 is a bad crank sensor which would make sens3. I'm switching it out tomorow morning and I'll let u all know what happens...
found the crank sensor and did not fix the problem. and for those who are looking for the crank sensor this is where mine is; its a 4 cylinder 2.5. sensor is on the driver side of the engine block. the actual sensor is bolted onto the bell housing on the driver side and the tail end is connected next to the fuel rail. reference link